Home / 51,851.88-77,781.66-14,918.76

Finding the Fourth Proportional to 51,851.88, 77,781.66 and 14,918.76

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Solution

The fourth proportional to 51,851.88, 77,781.66 and 14,918.76 is: 22,379.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,851.88 : 77,781.66 = 14,918.76 : x
  2. Step 2: Convert to fraction form
    51,851.88/77,781.66 = 14,918.76/x
  3. Step 3: Cross multiply
    51,851.88x = 77,781.66 × 14,918.76
  4. Step 4: Simplify right side
    51,851.88x = 1,160,405,917.94
  5. Step 5: Solve for x
    x = 1,160,405,917.94/51,851.88
  6. Step 6: Final answer
    x = 22,379.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.